[英]How to find “no” internet data while user has internet access in android
[英]How to find internet is working or not
在設備中,當我啟用互聯網數據時,它在網絡中顯示 E。 但我的 sim 卡中沒有數據包,而且互聯網在任何應用程序中都無法使用。 我使用了這段代碼,它返回 true 表示互聯網在那里。 在這種情況下,如何確定互聯網是否正常工作:
public static boolean isConnectingToInternetLatest(Context mContext) {
ConnectivityManager connectivityManager = (ConnectivityManager) mContext.getSystemService(Context.CONNECTIVITY_SERVICE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
Network[] networks = connectivityManager.getAllNetworks();
NetworkInfo networkInfo;
for (Network mNetwork : networks) {
networkInfo = connectivityManager.getNetworkInfo(mNetwork);
if (networkInfo.getState().equals(NetworkInfo.State.CONNECTED)) {
return true;
}
}
} else {
if (connectivityManager != null) {
//noinspection deprecation
NetworkInfo[] info = connectivityManager.getAllNetworkInfo();
if (info != null) {
for (NetworkInfo anInfo : info) {
if (anInfo.getState() == NetworkInfo.State.CONNECTED) {
//Log.d("Network", "NETWORK NAME: " + anInfo.getTypeName());
return true;
}
}
}
}
}
return false;
}
public boolean isInternetWorking() {
boolean success = false;
try {
URL url = new URL("https://google.com");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setConnectTimeout(10000);
connection.connect();
success = connection.getResponseCode() == 200;
} catch (IOException e) {
e.printStackTrace();
}
return success;
}
來自@YLS 答案的額外錯誤檢查。 這就是我檢查 HttpError 的方法。您可以將 onError 代碼修改為您想要的代碼。
try {
URL url = new URL("https://google.com");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setConnectTimeout(10000);
connection.connect();
success = connection.getResponseCode() == 200;
} catch (IOException e) {
onError(this,e);
}
public void onError(Activity activity,Throwable e){
try {
e.printStackTrace();
FirebaseCrash.report(e);
if (e instanceof HttpException) {
Response body = ((HttpException) e).response();
if (body.code() == 401) {
Toast.makeText(activity, "Not Authorized Access", Toast.LENGTH_SHORT).show();
} else if (body.code() == 404) {
Toast.makeText(activity, "Request not found", Toast.LENGTH_SHORT).show();
} else if (body.code() == 400) {
Toast.makeText(activity, "Bad Request", Toast.LENGTH_SHORT).show();
} else if (body.code() == 500) {
Toast.makeText(activity, "Internal Server Error", Toast.LENGTH_SHORT).show();
} else {
Log.e(Constants.TAG, "Error : Code HTTP = " + body.code());
}
}else if(e instanceof ConnectException || e instanceof SocketException){
Toast.makeText(activity, "Check Your Internet Connection", Toast.LENGTH_SHORT).show();
} else if (e instanceof UnknownHostException) {
Toast.makeText(activity, "Make Sure Your Internet Connection is Properly Connected", Toast.LENGTH_SHORT).show();
} else if (e instanceof SSLHandshakeException || e instanceof SSLPeerUnverifiedException) {
Toast.makeText(activity, "Server Connection Problem..Please Try Again", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(activity, "Data Load Error", Toast.LENGTH_SHORT).show();
}
}
catch (Exception ex){
FirebaseCrash.report(e);
e.printStackTrace();
}
}
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